So far the power purple is working really well. I had to let it sit a bit longer as the paint is stubborn but by tomorrow it should be ready to rince off. I got a screen strainer for foods i'm going to run it through to get all the debris out. I actually have that in the power purple too as it was pretty grody from sitting around. I just wish power purple came in a paste or foam so i could coat this helmet i need the tpaint off of.